def delete_released(self, event):
"""Button has been released
Only delete the image if the button has been pressed for
five seconds. Otherwise, do nothing.
"""
if not self.is_pressed:
# Got here by cosmic rays, or some such.
return None
self.is_pressed = False
if self.press_start > 0 and time.time() > self.press_start + self.PRESS_TIME:
shutil.rmtree(self.images.current().directory)
self.images = utils.disk_image_list(self.source_dir)
self.refresh()
def scan_device(self, event):
if self.disks.current() != None and self.disks.current().present:
self.updates = False
partitions = utils.get_device_partitions(self.disks.current().path)
self.copy_dir = None
tmp_listener = pifacecad.SwitchEventListener(chip=self.cad)
tmp_listener.register(self.BUTTON_COPY_Y, pifacecad.IODIR_FALLING_EDGE, self.copy_image)
tmp_listener.register(self.BUTTON_COPY_N, pifacecad.IODIR_FALLING_EDGE, self.pass_image)
tmp_listener.activate()
for partition in partitions:
self.write_queue.put({"action": "write", "pos": [0, 0], "blank": 1, "text": partition})
mnt = utils.mount(partition)
if mnt:
self.write_queue.put({"action": "write", "pos": [0, 1], "blank": 1, "text": "Scanning ..."})
images = utils.scan(mnt)
for dir in images:
self.write_queue.put({"action": "write", "pos": [0, 0], "blank": 1, "text": images[dir]})
self.write_queue.put({"action": "write", "pos": [0, 1], "blank": 1, "text": "Y N"})
self.do_copy = None
while self.do_copy == None:
pass
if self.do_copy == 1:
self.write_queue.put({"action": "write", "pos": [0, 1], "blank": 1, "text": "Copying ..."})
# Find a nunique directory name
i = 1
while os.path.exists(self.source_dir + "/{0:06d}".format(i)):
i += 1
new_dir = self.source_dir + "/{0:06d}".format(i)
os.mkdir(new_dir)
distutils.dir_util.copy_tree(dir, new_dir)
# self.main_lines[0]['source'] = utils.disk_image_list(self.source_dir)
self.images = utils.disk_image_list(self.source_dir)
utils.umount(mnt)
tmp_listener.deactivate()
self.refresh()
self.updates = True
def __init__(self, disks, source_dir, write_function):
# Callback function for writing to the device
self.write_function = write_function
self.source_dir = source_dir
self.disks = disks
self.images = utils.disk_image_list(self.source_dir)
self.main_lines = [
{
#'source': self.images,
"info": ["name", "n_post_scripts", "n_variables"],
"x": 1,
},
{"source": disks, "info": ["model", "node_path"], "x": 2},
]
self.pointer_pos = 0
self.info_n = 0
self.load_line = {"source": disks, "info": ["model", "node_path"], "x": 1}
self.delete_line = {"source": self.images, "info": ["name", "n_post_scripts", "n_variables"], "x": 0}
self.system_data = [
self.ip_address,
self.cpu_temp,
self.storage_total,
self.storage_used,
self.storage_free,
self.shutdown,
self.reboot,
]
self.system_n = 0
# Send updates to display of devices
self.updates = False
# Whether button is pressed or not
self.is_pressed = False
self.cad = pifacecad.PiFaceCAD()
self.listener = pifacecad.SwitchEventListener(chip=self.cad)
self.scroll = False
self.display = self.DISPLAY_FIRST
self.write_queue = multiprocessing.Queue()
self.writer = threading.Thread(target=_lcd_writer, args=(self.write_queue, self.cad))
self.writer.start()
# Store bitmaps for the partial blocks that make up the progree bar.
# Each one contains 8 lines of the same number:
# BLOCK[0] '# ' = 16
# BLOCK[1] '## ' = 24
# BLOCK[2] '### ' = 28
# BLOCK[3] '#### ' = 30
# BLOCK[4] '#####' = 31
n = 0
for j in range(5):
n = n + (2 ** (4 - j))
self.write_queue.put({"action": "store", "bitmap": self.BLOCK[j], "lines": [n] * 8})
self.write_queue.put(
{
"action": "store",
"bitmap": self.UNSELECTED,
"lines": [
31, # #####
17, # # #
17, # # #
17, # # #
17, # # #
17, # # #
17, # # #
31, # #####
],
}
)
self.write_queue.put(
{
"action": "store",
"bitmap": self.SELECTED,
"lines": [
31, # #####
17, # # #
21, # # # #
21, # # # #
21, # # # #
21, # # # #
17, # # #
31, # #####
],
}
)
self.write_queue.put(
{
"action": "store",
"bitmap": self.POINTER,
"lines": [0, 8, 12, 14, 12, 8, 0, 0], # # # # ## # ### # ## # # # #
}
)